Porterhouse Blue is moreish full strength cocktail at 2.2 standard drinks. Shaken with 45ml whisky sullivans cove 18year and 15ml brandy grape armagnac domaine tariquet with 10ml blueberry syrup torani as well as 200ml ice and best with lunch. Just add ice to glass then add ice to shaker and add all ingredients to shaker. Shake well and strain into glass over ice and served in a old fashioned glass cold.